Abstract:
:The D40 gene encodes a kinetochore protein that plays an essential role in kinetochore formation during mitosis. Short inhibitory RNA against D40, D40 siRNA, has been shown to deplete the D40 protein in the human cancer cell line HeLa, which harbors wild-type p53, and this activity was followed by the significant inhibition of cell growth and induction of apoptotic cell death. The p53-null cancer cell line, PC-3M-luc, is also sensitive to the significant growth inhibition and cell death induced by D40 siRNA. The growth of PC-3M-luc tumors transplanted into nude mice was inhibited by the systemic administration of D40 siRNA and the atelocollagen complex. Furthermore, D40 siRNA significantly inhibited growth and induced apoptotic cell death in a cell line with a gain-of-function (GOF) mutation in p53, MDA-MB231-luc, and also inhibited the growth of tumors transplanted into mice when administered as a D40 siRNA/atelocollagen complex. These results indicated that D40 siRNA induced apoptotic cell death in human cancer cell lines, and inhibited their growth in vitro and in vivo regardless of p53 status. Therefore, D40 siRNA is a potential candidate anti-cancer reagent.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Urata YN,Takeshita F,Tanaka H,Ochiya T,Takimoto Mdoi
10.1038/srep13676subject
Has Abstractpub_date
2015-09-08 00:00:00pages
13676issn
2045-2322pii
srep13676journal_volume
5pub_type
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